The NCStar 10X-40X50 Mark III Scope with adjustable focus will increase your accuracy with the supreme clarity and performance of the optics industry leader. The Mark III's cutting edge technology and innovative design combine to create on of the most sophisticated scopes on the market. This scope is intended for snipers, hunters, or CQB with standard features to accommodate almost any application. This scope is manufactured with a single piece lightweight aluminum main body tube for resilience in the most rugged conditions. This scope is adjustable for parallax compensation.